Discrimination Analysis of Polyvinylchloride Adhesive Tapes with the Same Color by Gas Chromatography/Mass Spectrometry

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  • ガスクロマトグラフィー／質量分析法による同色ポリ塩化ビニルテープの識別
  • ガス クロマトグラフィー シツリョウ ブンセキホウ ニ ヨル ドウ ショク ポリ エンカビニルテープ ノ シキベツ

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In order to clarify the relationship between evidence from a crime and a suspect, the component of additives in adhesive tape made by polyvinyl chloride were analyzed by gas chromatography mass spectrometer. We proposed a discrimination method that consisted of three steps procedure using the kind of additives and content ratio. At first, mass chromatogram of mass-to-charge ratio (m/z) 149 was used to confirm the peaks of diisononyl phthalates. Next, mass chromatograms of five components, except for the phthalates, were checked, respectively. Finally, eight peaks on the mass chromatogram of m/z 149 from 2 to 9 minutes were analyzed and judged to discrimine the same color adhesive tapes. Using gray adhesive tapes, colorless transparent ones and blue ones made it possible to identify by this technique. Another color of adhesive tapes was identified to some extent.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 58 (10), 881-886, 2009

    The Japan Society for Analytical Chemistry

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